The so-called self-interest and altruism is "as long as you are good, you want to do something for others."

Egoism is naked self-centered, judging things by gains and losses. Pursuing fame, hoping to attract attention, being competitive and so on. , are self-interested to us.

Altruism is love for others. Although each of us is concerned about love, warmth and beautiful mind, we can't give full play to it if we don't take the initiative to detect it.

No one can survive alone, but he should have Qi Xin's thinking mode that Qi Xin can only survive together. Being kind to others and taking actions that are beneficial to others is altruism.